I have 2. Had them a few years back and kept in pots. Over-wintered in greenhouse. They’d do better in the garden wouldn’t they? The purple one had one flower (just gone over), the white one no buds this year.
How lovely. I'm sure you could keep them going in pots if you pot them on in larger containers with some fresh compost, but they probably will do better in the garden long term.
I like those... do you know the name of the white one please? thank you..
East Anglia, England
edited April 2019
They are quite large plants up to 6-7 ft from memory so in the ground or much larger pots would be better. The white one is stunning.
North East Somerset - Clay soil over limestone